Toxic Spore Mines vs Open-topped Vehicles

In the bug codex it states that if a toxic spore mine hits an open-topped vehicle it causes one single glancing hit on the vehicle.

In the rulebook however, that open-topped vehicles are vulnerable to blasts and in the case of open-topped vehicles any template/blast weapon that hits the vehicles counts as two hits.

If a toxic spore mine hits an open-topped vehicle does it cause one automatic glancing hit, or does it cause two?

"...a swarm of mechanised locusts sweeping over the land, stripping it bare of resources, bringing death and destruction to anything that stands in its path. Emperor preserve us against the predations of these so-called Orkish cults of speed!" - Cardinal Nomura at the Conclave of Hessen

Tyranids Arn't my strong point, so I may be incorrect in this, but after a review of the codex, it looks as if spore mines are not actually blast weapons. If you have a look at the spore mine profile, you will note that it is listed as being 'Heavy' not 'Heavy / Blast', and is therefore not a 'Blast' type weapon per say.

It is true that the template is used to determin who/what is hit, I'm not argueing that, but have a look at the wording for the 'Vulnerable to blast/template' special rule, and you will see that it requires a blast or template weapon, not just that the weapon use a blast or template.

Due to the fact your not hitting it with a blast weapon, the 'vulnerable to blast/template' rule dosn't come into play, and only get the single glancing hit as stated by the toxic mines entry.

It causes one automatically. It doesn't say it causes only one hit, just that one auto glances. BGB open topped rules say that they are VTBaT, and under those rules it says each hit counts as two.

Add the two together, you get 1 auto glance, and another hit, that needs to roll.

Mind you this is just word for word from rules, feel free to argue any other way.

And since toxin mines do not have a strength value there is no way for the second hit to do any damage.

End result being one glancing hit.

The meat things seek to destroy ourselves. They hunt us as we hunt them but they are weak and uncertain. Bring them understanding of the power of ourselves through our strength and their fear. The inferior flesh will be entirely destroyed, all fragments will be smashed. Ourselves will fight to the last, all weak flesh must be consumed

I'm sorry, but even with the information you have provided me, I'm not sure which answer is correct. This seems like one of the GW rules that could be interpreted either way.

"...a swarm of mechanised locusts sweeping over the land, stripping it bare of resources, bringing death and destruction to anything that stands in its path. Emperor preserve us against the predations of these so-called Orkish cults of speed!" - Cardinal Nomura at the Conclave of Hessen